Stock Options and Restricted Stock - Additional Information (Detail) (USD $)	12 Months Ended
	Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Number of stock-based compensation plan	1
Unrecognized stock compensation cost	$ 400,000
Unrecognized stock compensation cost weighted average recognition period	23 months
Restricted Shares
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Unrecognized stock compensation cost	300,000
Unrecognized stock compensation cost weighted average recognition period	22 months
Options Granted Outside Nineteen Ninety Two Plan and Twenty Zero Six Plan
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Options outstanding, number		330,000
Options outstanding, weighted-average exercise price		$ 3.15
Options exercised through net share settlement	330,000
Number of shares issued with no corresponding option cost	94,636
Employee Stock Plan Nineteen Ninety Two Plan
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Total intrinsic value of options exercised	400,000	89,000.0	500,000
Options outstanding, number	1,329,815	1,762,426
Options outstanding, weighted-average exercise price	$ 6.35	$ 5.93
Options, maximum annual grant		500,000
Number of shares issued with no corresponding option cost	21,751
Employee Stock Plan, 2006 Plan
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Shares of common stock available for granting of awards	5,750,000
Options expiration period from the date of grant	10 years
Shares available for future grant	3,908,027
Total intrinsic value of options exercised	$ 99,400	$ 39,000
Employee Stock Plan, 2006 Plan | Employees And Executives
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based compensation arrangement by share-based payment award, vesting period	3 years
Employee Stock Plan, 2006 Plan | Non Employee Directors
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based compensation arrangement by share-based payment award, vesting period	2 years
Employee Stock Plan, 2006 Plan | Messrs. Levin and Hernreich
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Options expiration period from the date of grant	4 years
Employee Stock Plan, 2006 Plan | Awards Other than Stock Options and Stock Appreciation Rights
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Shares of common stock available for granting of awards	3,750,000
Shares available for future grant	2,309,401